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  • The CHIME App
  • What Is CHIME?
    • The Model
    • Model Parameters
    • Interpreting the Results
  • How do I use it?
    • Basic Tutorial
    • Information Seekers
    • Decision Makers
    • Content Experts
  • Personal Protective Equipment (PPE) Calculator
    • Introduction to Personal Protective Equipment (PPE)
    • PPE Calculator Tutorials
    • How PPE Projections Are Calculated
    • Interpreting PPE Projections
  • Open Source
    • What is Open Source?
    • Making your own CHIME app
      • Making a Repo
      • Building the App Locally
      • Hosting the App
      • Maintaining the App
  • About Us
  • Penn Medicine Predictive Healthcare Team
  • Code for Philly
  • Partners
  • Links
    • Predictive Analytics at Penn (blog)
    • Release Notes
    • Interested in Contributing?
    • Contact Us
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  • Objective
  • Impact
  • Timeline
  • Quick resources

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The CHIME App

NextThe Model

Last updated 4 years ago

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The (COVID-19 Hospital Impact Model for Epidemics) App is designed to assist hospitals and public health officials understand hospital capacity needs as they relate to the COVID-19 pandemic. CHIME enables capacity planning by providing estimates of total daily (i.e. new) and running totals of (i.e. census) inpatient hospitalizations, ICU admissions, and patients requiring ventilation. These estimates are generated using a , a standard epidemiological modeling technique. Our model has been reviewed by several epidemiologists including Associate Professor of Epidemiology, Department of Biostatistics, Epidemiology and Informatics at the Perelman School of Medicine.

Objective

CHIME allows individuals to prepare their hospitals, cities, and regions for the looming crisis. It specifically allows users to forecast the expected number of in-hospital patients and daily admissions so that they can estimate the impact in their location and when they will need to have mitigation strategies in place.

Impact

CHIME is being used by numerous organizations. We’ve had outreach from all around the US and the world. We can't list exact users without their permission but we can tell you that we’ve had traffic from over 150 countries!

Timeline

We launched the app on 2020/03/15, and the team put in a heroic effort to stabilize it in less than a week. We are actively implementing more features and enhancements as users identify additional needs. Our current goal is to release updates every week.

Please check the for updates on the app!

Quick resources

The following resources provide additional insight into CHIME and techniques used. They are a good starting point for anyone interested in using CHIME for their own purposes:

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CHIME
SIR (Susceptible, Infected, Recovered) model
Michael Z. Levy, PhD,
Release Notes
Announcing CHIME, A tool for COVID-19 capacity planning
CHIME comparison with Imperial College COVID-19 Publication
CHIME 0.5.0 released with major updates
Updating CHIME Input Parameters Based on New COVID-19 Regional Observations
CHIME 1.1.0 released, mid-growth stage updates
Introducing a PPE Calculator for use with CHIME